TW381194B - Display assembly including two superposed display devices - Google Patents

Display assembly including two superposed display devices Download PDF

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Publication number
TW381194B
TW381194B TW088102679A TW88102679A TW381194B TW 381194 B TW381194 B TW 381194B TW 088102679 A TW088102679 A TW 088102679A TW 88102679 A TW88102679 A TW 88102679A TW 381194 B TW381194 B TW 381194B
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Taiwan
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display
display device
cavity
state
scope
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TW088102679A
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Chinese (zh)
Inventor
Naci Basturk
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Asulab Sa
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    • GPHYSICS
    • G04HOROLOGY
    • G04GELECTRONIC TIME-PIECES
    • G04G9/00Visual time or date indication means
    • G04G9/0023Visual time or date indication means by light valves in general
    • G04G9/0029Details
    • G04G9/0035Details constructional
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1334Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528Polarisers
    • G02F1/133536Reflective polarizers
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528Polarisers
    • G02F1/133543Cholesteric polarisers

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Dispersion Chemistry (AREA)
  • Electric Clocks (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The invention concerns a display assembly including two superposed, respectively (upper and lower display devices), characterised in that the upper display device including a display cell arranged above an optical valve, said double structure being arranged so as to be transparent in a first state to make the lower display device visible, and so as to display an item of data in a second state, control means supplying a control voltage to the cell to cause it to switch from the first state to the second state and vice versa, characterized in that said cell is a display cell of the type including a diffusing or reflective liquid crystal in the second state.

Description

Μ Β7 ' 五、發明説明(1 ) 發明領域 (請先閲讀背面之注意事項再填寫本頁) 本發明是關於一種包含至少兩重疊顯示裝置的顯示組 件,更特別是包含此種其中混合有長短針顯示裝置與數字 顯示裝置的顯示組件的時計。 習知技術說明 經濟部智慧財產局員工消費合作社印製 眾所周知,法國專利案F R 2 4 6 2 2 8 3揭示包含 有其中配置有長短針顯示裝置與數字顯示裝置的殼的電子 表。長短針顯示裝置包含以習知方式在錶盤上轉動的時針 與分針,同時數字顯示裝置包含有配置在長短針顯示裝置 上方的透明液晶顯示晶穴。在此專利中,數字‘顯示裝置允 許例如星期與月的字母與數字的字元以深色顯示在淺色的 背景上。這是包含有配置在液晶晶穴各側的兩個偏光板的 扭曲向列液晶,位在液晶晶穴下方的錶盤是使用作爲反射 器。以此結構,反射器與錶盤必須反射入射光而不需修改 其極化以產生明亮的高對比顯示。此顯示裝置因此限制可 能使用以形成下顯示裝置,特別當下顯示裝置是數字顯示 裝置時。以此狀況,僅能使用具有非擴散反射特性的錶盤 ,例如金屬反射器。 再者,此類型的液晶晶穴通常顯示深色的資料在淺色 的背景上,這排除了使用深色錶盤作爲反射器。另者,淺 色背景實際上看起來相當地呈灰色,因爲偏光板吸收了不 可疏忽量的光,這將給予顯示裝置不符合要求的辨識與亮 度。 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) -4- 經濟部智慧財產局員工消費合作社印製 A7 B7 '五、發明説明(2 ) 如此的在錶盤選擇上的限制代表著錶製造者的明顯缺 點,他們希望能夠在市場上推出包括所有類型錶盤的錶以 適應流行的改變。 再者,因爲光的反射發生在錶盤上,因此在距液晶晶 穴某些距離處,一般爲2至3 m m,自液晶晶穴轉換的影 像與區段以投影顯示在錶盤上,這將導致所顯示資料的光 分裂。這不僅有害於錶的美觀,而且有害於被顯示資料的 辨識。 發明槪述 本發明的目的在於藉由配置有包括至少兩個分別爲上 與下的重疊顯示裝置的顯示組件以克服前述習知技術的缺 點,其中由上顯示裝置所顯示的資料的亮度及其辨識度是 不依靠或幾乎不依靠下顯示錶盤的本質(擴散/反射)及 Λ 其顏色(淺或深)。 本發明的另一目的在於提供一種其中上顯示裝置爲具 有改良的顯示對比的液晶裝置之顯示組件。 本發明的另一目的在於提供一種配置具有改良美觀的 如此的顯示組件之時計。 因此,本發明是關於一種包含有兩個重疊的分別爲上 與下顯示裝置之顯示組件,上顯示裝置含有一顯示晶穴, 其配置在第一狀態呈透明狀以使下顯示裝置可被看到,並 在第二狀態顯示一項資料,控制裝置供應控制電壓至顯示 晶穴以使得其自第一狀態轉換至第二狀態,相反亦然,其 本紙張尺度適用中國國家標準(CNS ) Α4規格(210Χ 297公釐) (請先閱讀背面之注意事項再填寫本頁)M B7 'V. Description of the invention (1) Field of the invention (please read the notes on the back before filling out this page) The present invention relates to a display module including at least two overlapping display devices, and more particularly to a display module including such a display device which has a long mixture A timepiece with a display assembly of a short-hand display device and a digital display device. Known technical description Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economics It is well known that the French patent case F R 2 4 6 2 2 8 3 discloses an electronic watch including a case in which a long and short needle display device and a digital display device are arranged. The long and short hand display devices include the hour and minute hands rotating on the dial in a conventional manner, and the digital display device includes a transparent liquid crystal display cell disposed above the long and short hand display devices. In this patent, the number 'display means allows characters such as letters and numbers of the day of the week and month to be displayed in a dark color on a light background. This is a twisted nematic liquid crystal containing two polarizing plates arranged on each side of the liquid crystal cell. The dial located below the liquid crystal cell is used as a reflector. With this structure, the reflector and dial must reflect incident light without modifying its polarization to produce a bright, high-contrast display. This display device thus restricts its possible use to form a lower display device, especially when the lower display device is a digital display device. In this case, only dials with non-diffusive reflection characteristics, such as metal reflectors, can be used. Furthermore, this type of liquid crystal cell usually displays dark material on a light background, which precludes the use of a dark dial as a reflector. In addition, the light background actually looks quite gray because the polarizer absorbs an inadvertent amount of light, which will give the display device unacceptable identification and brightness. This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) -4- Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 'V. Description of the invention (2) Such a restriction on dial selection represents The obvious disadvantage of watch makers is that they want to be able to introduce on the market watches that include all types of dials to accommodate popular changes. Furthermore, because the reflection of light occurs on the dial, it is generally 2 to 3 mm at some distance from the liquid crystal cell. The image and segment converted from the liquid crystal cell are projected on the dial, which will cause Photo splitting of displayed data. This is not only harmful to the appearance of the watch, but also to the identification of the displayed data. SUMMARY OF THE INVENTION The object of the present invention is to overcome the shortcomings of the prior art by disposing a display assembly including at least two overlapping display devices, which are respectively upper and lower, wherein the brightness of data displayed by the upper display device and its Recognition is based on the nature of the lower display dial (diffuse / reflective) and its color (light or dark). Another object of the present invention is to provide a display module in which the upper display device is a liquid crystal device with improved display contrast. Another object of the present invention is to provide a timepiece configured with such a display module having improved appearance. Therefore, the present invention relates to a display assembly including two overlapping display devices, an upper display device and a lower display device. The upper display device includes a display cavity, which is arranged in a first state to be transparent so that the lower display device can be viewed. To, and display a piece of data in the second state, the control device supplies the control voltage to the display cavity so that it switches from the first state to the second state, and vice versa, its paper size applies the Chinese National Standard (CNS) Α4 Specifications (210 × 297 mm) (Please read the precautions on the back before filling this page)

A7 B7 ' 五、發明説明(3 ) 特徵在於該顯示晶穴是在第二狀態中的擴散型或反射型的 液晶顯示晶穴。 (請先閱讀背面之注意事頃再填寫本頁) 作爲這些特色的結果,穿過顯示晶穴的入射光的反射 不再發生於位在顯示晶穴後方的錶盤上,就如習知技術的 例子,然而直接發生在液晶顯示晶穴上當後者是轉換成第 二狀態時。一方面,這允許將被移開的錶盤上轉換帶的投 影干涉,並因此對使用者的雙重顯示將被阻止,另一方面 ,給予錶製造業完全的自由度去選擇錶盤或下顯示裝置的 顏色與本質。如此的顯示結構更增加了所要顯示資料的亮 度及其辨識性,尤其是在下顯示裝置是深色的或包含有深 色的錶盤。 根據本發明的有利特色,液晶晶穴是選自由反向的 P D L C晶穴、向列膠或動態散射晶穴、P S C T晶穴及 電極晶穴所形成的群組,及選自配置有偏光板位在其前的 扭曲向列晶穴,此向列晶穴具有四分之一波片及膽固醇薄 膜連續地配置於其後,及選自配置有第一偏光板位在其前 以及可能與第二偏光板結合一起的反射偏光板位在其後的 扭曲向列晶穴。 經濟部智慧財產局員工消費合作社印製 根據第一實施例,顯示組件包含其前配置有偏光板的 扭曲向列晶穴,及與連續配置於此向列晶穴後面的膽固醇 薄膜結合的四分之一波片,上顯示裝置或下顯示裝置另包 含配置於膽固醇薄膜後面的第二四分之一波片,而下顯示 裝置包含配置於該第二四分之一波片後面的金屬反射片。 光經由第二四分之一波片的通路允許來自膽固醇薄膜 本纸張尺度適用中國國家標準(CNS ) A4規格(210X 297公釐) -6 - A7 B7 經濟部智慧財產局員工消費合作社印製 五、‘發明説明(4 ) 的圓形偏振光轉換成直線偏振光’爲了使金屬反射片更有 效率。此結構允許反射光被顯示組件均勻化且使其顏色較 少依據光的波長。 根據第二實施例,顯示組件包含其前配置有偏光板的 扭曲向列晶穴,及與位在其後含有第一螺旋方向的膽固醇 薄膜結合的四分之一波片,下顯示裝置包括具有相反於膽 固醇薄膜的螺旋方向的膽固醇鏡。 作爲此結構的結果,所有通過膽固醇薄膜並代表一半 入射光的光被膽固醇鏡所反射,這將允許改進顯示組件的 亮度。在腕錶或類似物的例子中,膽固醇鏡可有利地形成 此錶的錶盤。 根據第三實施例,光閥包含其前配置有偏光板的扭曲 向列晶穴,及與連續配置在其後的膽固醇薄膜結合的四分 之一波片,下顯示裝置另包含半波片及相同於第一膽固醇 薄膜的第二膽固醇薄膜。作爲此結構的結果,可使用與顯 示晶穴的兩個相同的光元件,此代表在實際觀點上的一個 優點。 根據本發明的另一實施例,顯示晶穴是在透明的狀態 並缺少由控制晶穴施加至其上的電壓。 由下顯示裝置顯示的資料是永久可看到而上顯示裝置 並未消耗任何能量。在應用此顯示裝置至如腕錶的可攜帶 式物品的領域內是特別有利的。 本發明的其它特點與優點將參考附圖呈現在以下未受 限的較佳實施例中。 (請先聞讀背面之注意事項再填寫本頁) ΘΙ 裝.A7 B7 'V. Description of the invention (3) The display cell is a diffusive or reflective liquid crystal display cell in a second state. (Please read the notes on the back before filling this page.) As a result of these features, the reflection of incident light through the display cavity no longer occurs on the dial behind the display cavity, as is the case with conventional technology. Example, however, occurs directly on the liquid crystal display cell when the latter is converted to the second state. On the one hand, this allows the projection interference of the conversion band on the dial to be removed, and thus the double display to the user will be prevented. On the other hand, it gives the watchmaker complete freedom to choose the dial or lower display Color and essence. Such a display structure further increases the brightness and recognizability of the data to be displayed, especially when the lower display device is dark or contains a dark dial. According to an advantageous feature of the present invention, the liquid crystal cell is selected from the group consisting of a reverse PDLC cell, a nematic or dynamic scattering cell, a PSCT cell, and an electrode cell, and is selected from a group configured with a polarizing plate. The twisted nematic cavity in front of it has a quarter wave plate and a cholesterol film continuously arranged behind it, and is selected from the group where a first polarizing plate is arranged in front of it and possibly with the second The polarizing plate combined with the reflective polarizing plate is behind the twisted nematic cavity. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs According to the first embodiment, the display module includes a twisted nematic cavity with a polarizing plate disposed in front of it, and a quarter point combined with a cholesterol film continuously disposed behind this nematic cavity One wave plate, the upper display device or the lower display device further includes a second quarter wave plate disposed behind the cholesterol film, and the lower display device includes a metal reflection plate disposed behind the second quarter wave plate . The light passes through the second quarter-wave plate to allow it to come from the cholesterol film. The paper size applies the Chinese National Standard (CNS) A4 specification (210X 297 mm) -6-A7 B7 Printed by the Employees ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs V. 'Invention Note (4) Converting Circularly Polarized Light to Linearly Polarized Light' in order to make the metal reflector more efficient. This structure allows the reflected light to be homogenized by the display component and makes its color less dependent on the wavelength of the light. According to a second embodiment, a display module includes a twisted nematic cell with a polarizer disposed in front thereof, and a quarter-wave plate combined with a cholesterol film containing a first spiral direction behind it, and a lower display device includes Cholesterol mirror opposite the spiral direction of the cholesterol film. As a result of this structure, all light that passes through the cholesterol film and represents half of the incident light is reflected by the cholesterol mirror, which will allow the brightness of the display module to be improved. In the case of a wristwatch or the like, a cholesterol mirror may advantageously form the dial of this watch. According to a third embodiment, the light valve includes a twisted nematic cavity with a polarizing plate disposed in front of the light valve, and a quarter wave plate combined with a cholesterol film disposed continuously behind, and the lower display device further includes a half wave plate and The second cholesterol film is the same as the first cholesterol film. As a result of this structure, it is possible to use the same optical element as the two displaying cavities, which represents an advantage from a practical point of view. According to another embodiment of the present invention, the cavities are shown in a transparent state and lack a voltage applied thereto by the control cavities. The data displayed by the lower display is permanently visible while the upper display does not consume any energy. It is particularly advantageous in the field of applying this display device to a portable article such as a wristwatch. Other features and advantages of the present invention will be presented in the following unrestricted preferred embodiments with reference to the drawings. (Please read the notes on the back before filling out this page) ΘΙ Pack.

、1T 本紙張尺度適用中國國家標準(CNS ) Α4規格(210Χ 297公釐) A7 B7 五、發明説明(5 ) 簡要說明 圖1是配置有根據本發明的顯示晶穴的腕錶的橫截面 圖’顯示組件是切入允許下顯示裝置顯示的第一狀態; • 圖2是圖1所示的腕錶的上視圖,顯示組件是在相同 於圖1的切入狀態; 圖3與4是分別類似於圖1與2,顯示組件是切入第 二狀態其中資料是顯示在透明背景上的反射不透明體; 圖5是類似於圖4的腕錶的上視圖,其包含根據本發 明的顯示組件其中資料是透明地顯示在反射的不透明背景 上; 圖6至9顯示根據本發明的不同實施例的簡圖;及 (請先閱讀背面之注意事項再填寫本頁) 、·§! 經濟部智慧財產局員工消費合作社印製 圖1 0 a、1 0 b 與 1 1 a 、1 1 b是扭曲向列的 示晶穴的簡圖 0 主要元件對照表 1 錶 2 殼 4 背蓋 6 錶心 8 電池 1 0 接觸彈簧 1 2 秒針 1 4 分針 1 6 時針 1 8 錶盤 2 0 時亥!1 2 2 水晶 2 4 上顯不裝置 2 6 下顯示裝置 2 8 晶片 3 2 a 連接器 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) 8 A7 B7 五、發明説明(6 ) 3 2 b 連 接 器 3 4 前基 板 3 6 後 基 板 3 8 密封 框 4 〇 電 極 4 2 電極 4 4 接 觸 區 4 6 線性 偏 光 板 4 8 四 分 之一 波 片 5〇 膽固 醇 薄 膜 5 2 四 分 之一 波 片 5 4 四分 之 — 波 5 6 四 分 之一 波 片 6 0 反射 偏 光 板 6 4 偏 振 方向 6 6 觀察 者 (請先鬩讀背面之注意事項再填寫本頁) oi裝· 霞隹實施例的詳細說明 本發明的說明將在如腕錶的時計的應用範圍內製作。 不用說地,本發明並未限制在此應用上,且並可有利地使 用在任何其它需要資料顯示的應用上,例如廣告告示牌或 測量儀器。 參考圖1至4,他可看到標示爲1的腕錶型的時計。 以習知的方式,此錶1包括設有背蓋4的殼2 ,其中配置 有電子鐘錶裝置錶心6及經由接觸彈簧1 0安置在背蓋4 上的電池8。錶心6包括時間管理電路,其經由控制電路 與秒針1 2、分針1 4及時針1 6的驅動裝置(未顯示) 結合。這些針1 2、1 4與1 6在具有時刻2 0的錶盤 1 8上移動,如圖2所示。殼2是以覆蓋整個盤表1 8的 水晶2 2的習知方式予以封閉。 根據本發明,錶1另包括含有兩個重疊分別爲上與下 顯示裝置2 4與2 6的顯示組件。在所示的實例中,下顯 本纸張尺度適用中國國家標準(CNS) A4規格(21〇>< 297公釐) 、11 經濟部智慧財產局員工消費合作社印製 五、發明説明(7 ) 示裝置2 6包括時間相關資訊的顯示裝置,特別是由針 1 2、1 4與1 6及錶盤1 8形成的長短針時間顯示裝置. 〇 不用說,下顯示裝置2 6可以任何數字顯示裝置形成 例如液晶類型。顯不裝置2 6亦可包括長短針與數字顯 示裝置的組件,例如歐洲專利案 EP - B — 0078237 中所述。 經濟部智慧財產局員工消費合作社印製 根據本發明,上顯示裝置2 4包括顯示晶穴2 8並延 伸在下顯不裝置2 6與水晶2 2之間.。實例所示,此上顯 不裝置2 4覆蓋錶盤1 8的整個表面。不用說,根據替代 的實施例,上顯示裝置2 4可形成錶1的水晶2 2。顯示 裝置2 4是如此配置使得顯示晶穴2 8是透明於第一切換 狀悲以便由下顯不裝置2 6顯不資料,亦即,可見到在實 例中所顯示的針1 2、1 4與1 6及錶盤1 8。根據本發 明的顯示組件的如此組態是顯示在圖1與2。另一方面, 上顯示裝置2 4是如此配置使得顯示晶穴2 8顯示一組資 料’例如第二切換狀態中的字元數字形式。根據本發明的 顯示裝置的如此組態是顯示於圖3與4。 顯示晶穴2 8自第一狀態至第二狀態的切換以及相反 切換可藉由整體形成於錶心6的控制裝置(未顯示)達成 ’這些控制裝置是藉由習用的連接器3 2 a與3 2 b連接 至顯示晶穴2 8以便供應它們控制電壓。在所示的實例中 ’這些連接器3 2 a與3 2 b形成配置在錶盤1 8的上緣 與顯示晶穴2 8的下緣之間的凸緣。 ί紙張尺度適用中國國家標準(CNf) M規格(2丨οχ29?公釐) .1〇 . ' Μ Β7 經濟部智慧財產局員工消費合作社印製 五、發明説明(8 ) 根據本發明,顯示晶穴2 8在第二狀態是擴散或反射 液晶晶穴。 根據本發明的較佳實施例’顯7^晶穴2 8是扭曲向列 (TINT)的液晶顯示晶穴。此顯不晶穴2 8包括透明的前 基板3 4,透明的後基板3 6 ’形成間隔與封閉裝置的密 封框3 8,以及由基板3 4與3 6界定且其中具有液晶層 的空穴。基板3 4與3 6的相對表面具有透明的電極4 0 與4 2,例如以銦錫氧化物(indlum/tin oxide )製成。在解 說的賓例中,前基板3 4具有以數位組成的電極’各數位 是由允許字母數字符號顯示的區段形成’而後基板3 6具 有延伸於其整個表面的電極。電極4 0與4 2是經由位在 空穴外側的接觸區4 4連接至連接器3 2 a。顯示晶穴 2 8另包含位在水晶2 2側的線性偏光板4 6,及位在錶 盤1 8側的與膽固醇薄膜5 0結合的四分之一波片4 8。 如此的顯示晶穴是類似於在此引用參考的出版於J · Phy s. Appl. Phy.,Vol 8,1 975 由 T.J.Sheffer所著的"Twisted Nematic Display with Cholesteric Reflector〃 (具有膽固醇 反射器的扭曲向列顯示器)中所述的顯示裝置。 偏光板4 6最好是屬於高效率偏振與傳送類型,例如 由曰本Sandtsu公司以代號L L C 2 5 6 1 8 S F銷售的偏 光板。 亦要注意到,根據一替代例,在Scheffer的文獻中所述 的扭曲向列液晶晶穴可以亦在此引用參考的歐洲專利 EP - A — 〇 6 0 0 3 49中所揭示的彩色顯示裝置予以 本紙張尺度適用中國國家標準(CNS ) A4規格(210X 297公釐) -11 - (請先閣讀背面之注意事項再填寫本百〇 θί 裝. 訂 A7 , B7 五、發明説明(9 ) 取代。 根據另一替代例,可選擇反射波長或相當於設定顏色 的部分可見物之膽固醇薄膜5 0。以此方式’可選擇以相 對於錶盤顏色的互補顏色來顯示資料,因此改良顯示組件 的對比與美觀。 在本發明的領域內,可切換的顯示晶穴2 8在未切換 狀態是透明,而在已切換狀態是反射。 當在電極4 0與某些電極4 2之間施加或移除電壓時 ,位在這些電極4 2與4 0之間的液晶可交替地自反射或 擴散狀態轉換至透明狀態。 經濟部智慧財產局員工消費合作社印製 (請先閱讀背面之注意事項再填寫本頁) 要注意到,顯示晶穴2 8是9 0 °扭曲向列液晶晶穴 ’偏光板4 6是習知的線性類型,四分之一波片4 8在圓 中的光偏振至右,以及膽固醇薄膜5 0是左扭曲向列薄膜 。顯示晶穴2 8在第一切換狀態是全然地透明,亦即,當 未有電壓施加橫跨電極4 0與4 2的接頭時(未切換狀態 )。此狀悲在圖1中以R 1光射線的符號表示,其中可看 到此光射線通過顯不晶穴2 8並被錶盤1 8反射。顯示晶 穴2 8是擴散或反射於其已切換的區域,亦即,當有一電 壓施加橫跨電極4 0與4 2的接頭時(已切換狀態)。此 第二狀態在圖3中以R 2光射線的符號表示,其中可看到 此光射線被咸不晶穴2 8反射。因此’可顯示不透明的資 料於反射背景上,不透明度是由膽固醇薄膜5 〇所反射的 顏色決疋而㈢景由錶盤1 8的顏色決定。如果希望在不 透明背景上具有透明的顯示(圖5 ),偏光板4 6可對其 本纸張尺度 ϋ财 s ® (挪774^ ~i2:~ ---- A7 _______B7_^_ 五、發明説明(10 ) 起始位置旋轉9 0 ° 。要注意到,相同的效果可藉由使四 分之一波片4 8對其起始位置旋轉9 〇。而獲得。在此例 中’當未施加控制電壓時,顯示晶穴2 8是不透明且.反射 的’若有控制電壓施加在電極4 0與4 2之間,則顯示晶 穴2 8變爲透明。 在以下的說明中’相同於圖1至5中所述的元件將以 相同的數字標示。 現參考圖6,顯示本發明的顯示裝置的第一替代實施 例。根據此替代例’上顯示裝置2 4另包含緊接在膽固醇 薄膜5 0之後的第二四分之一波片5 2,而下顯示裝置 2 6包含形成金屬反射器的錶盤1 8。經由實例,錶盤 1 8的可見表面可包含反射金屬層如果錶盤1 8不是金屬 製成,或.者此表面可以鏡面拋光如果錶盤1 8是金屬的。 要注意到’亦可能將第二四分之一波片5 2直接一體成形 於錶盤1 8。 現參考圖7,顯不本發明的顯示裝置的第二替代實施 例。根據此替代例’下顯示裝置2 6包含形成膽固醇鏡的 錶盤1 8 ’此膽固醇鏡具有相反於上顯示.裝置2 4的膽固 醇薄膜5 0之螺旋方向。 現參考圖8,顯示本發明的顯示裝置的第三替代實施 例。根據此替代例,下顯示裝置2 6另包含第二與第三四 分之一波片5 4與5 6及取代鑛盤1 8的第二膽固醇薄膜 5 8° 根據圖9中所示的另一實施例,顯示晶穴2 8可包含 (請先閎讀背面之注意事項再填寫本頁} 裝 、-° 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準(CNS ) A4規格(210 X 297公釐) -13 經濟部智慧財產局員工消費合作杜印製 A7 ________B7 __ 五、發明説明(彳彳) 在水晶2 2側上的線性偏光板4 6,及在錶盤1 8側上的 反射偏光板δ 0 ’其可與位在其前的線性偏光板.結合於四 分之一波片4 8與膽固醇薄膜5 〇的位置。 以有利的方式,反射偏光板可以是V 一稜柱型,例如 由3 Μ公司以D B E F (雙重亮度加強薄膜)品名銷售的 產品。例如由3 Μ公司製造的β ε F ( 1亮度加強薄膜) 的其它用以改進系統亮度的薄膜,可或可不與先前所述的 D B E F薄膜相關連。若必要,前文所述的反射偏光板可 以折射偏光板取代,例如由3 Μ公司以T D F品名銷售的 產品。四分之一波片4 8與膽固醇薄膜5 0亦可一體成形 於單一元件,例如由Merck公司以TRAN SMAX®品名 銷售的產品。 明顯地,任何其它線性地反射偏振光的分量之一並實 質地傳送垂直於第一分量的其它分量之偏光板,亦可在扭 曲向列的顯示晶穴2 8之後與位在此顯示晶穴2 8之前的 線性偏光板一起使用。 在圖1 0 a所示的第一狀態中,線性偏光板4 6與反 射偏光板6 0是如此訂位使得它們的偏振軸相交叉。以正 電介質非等向性的扭曲向列液晶晶穴之顯示晶穴2 8配置 在上述的兩個偏光板之間,顯示晶穴2 8的未切換狀態是 全然地透明,所以錶盤1 8是可見的。如圖1 〇 a中所見 ,以數字6 6標示的自然未偏振光,是被線性偏光板4 6 垂直地偏振。當通過顯示晶穴2 8時’以6 4標示的光的 偏振方向旋轉9 0 ° ,然後未修正地由反射偏光板6 0傳 (請先聞讀背面之注意事項再填寫本頁)、 1T This paper size applies Chinese National Standard (CNS) A4 specification (210 × 297 mm) A7 B7 V. Description of the invention (5) Brief description Figure 1 is a cross-sectional view of a wristwatch equipped with a display cavity according to the present invention 'The display unit is the first state displayed by the display device under cut-in allowance; • FIG. 2 is a top view of the wristwatch shown in FIG. 1, and the display unit is in the same cut-in state as in FIG. 1; FIGS. 3 and 4 are similar to Figures 1 and 2, the display component is cut into the second state where the data is a reflective opaque body displayed on a transparent background; Figure 5 is a top view of a wristwatch similar to Figure 4, which contains a display component according to the present invention, where the data is Transparently displayed on a reflective opaque background; Figures 6 to 9 show simplified diagrams according to different embodiments of the present invention; and (Please read the precautions on the back before filling this page), · §! Staff of the Intellectual Property Bureau of the Ministry of Economic Affairs Consumption cooperative prints 1 0 a, 1 0 b and 1 1 a, 1 1 b are simplified diagrams of twisted nematic cells. 0 Main component comparison table 1 Table 2 Case 4 Back cover 6 Bezel 8 Battery 1 0 Contact spring 1 2 Needle 1 4 minute hand 1 6 hour hand 1 8 dial 2 0 hour! 1 2 2 crystal 2 4 upper display device 2 6 lower display device 2 8 chip 3 2 a connector This paper size applies to China National Standard (CNS) A4 specifications (210X297 mm) 8 A7 B7 V. Description of the invention (6) 3 2 b Connector 3 4 Front substrate 3 6 Rear substrate 3 8 Sealing frame 4 〇 Electrode 4 2 Electrode 4 4 Contact area 4 6 Linear polarizer 4 8 Four Half-wave plate 5 0 Cholesterol film 5 2 Quarter-wave plate 5 4 Quarter-wave 5 6 Quarter-wave plate 6 0 Reflective polarizer 6 4 Polarization direction 6 6 Observer (please read first Note on the back, please fill out this page again.) Ii. Detailed description of the Xiahuang embodiment The description of the present invention will be made within the scope of application of timepieces such as watches. Needless to say, the present invention is not limited to this application, and can be advantageously used in any other application that requires information display, such as an advertisement signboard or a measuring instrument. Referring to Figures 1 to 4, he can see a timepiece of the wristwatch type labeled 1. In a conventional manner, this watch 1 includes a case 2 provided with a back cover 4 in which an electronic timepiece device core 6 and a battery 8 disposed on the back cover 4 via a contact spring 10 are arranged. The bezel 6 includes a time management circuit, which is combined with a driving device (not shown) of the second hand 12, the minute hand 14, and the time hand 16 via a control circuit. These hands 12, 14 and 16 move on a dial 18 with a time 20 as shown in FIG. 2. The case 2 is closed in a conventional manner with a crystal 22 covering the entire dial 18. According to the present invention, Table 1 further includes a display assembly including two overlapping display devices 24 and 26, respectively. In the example shown, the paper size shown below applies the Chinese National Standard (CNS) A4 specification (21〇 < 297 mm), 11 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, 5. Description of the invention ( 7) The display device 2 6 includes a time-related information display device, especially the long and short hand time display device formed by the hands 1 2, 1 4 and 16 and the dial 18. 〇 Needless to say, the lower display device 2 6 can be any number The display device is formed of, for example, a liquid crystal type. The display device 26 may also include a combination of long and short needles and a digital display device, such as described in European Patent EP-B-0078237. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs According to the present invention, the upper display device 24 includes a display crystal cavity 28 and extends between the lower display device 26 and the crystal 22. As shown in the example, the display device 2 4 covers the entire surface of the dial 18. Needless to say, according to an alternative embodiment, the upper display device 24 can form the crystal 22 of Table 1. The display device 2 4 is so configured that the display cavity 28 is transparent to the first switching state so that the data can be displayed by the lower display device 2 6, that is, the needles 1 2, 1 4 shown in the example can be seen. With 16 and dial 18. Such a configuration of a display module according to the present invention is shown in Figs. On the other hand, the upper display device 24 is so configured that the display cavities 28 display a group of materials', such as the alphanumeric form in the second switching state. Such a configuration of the display device according to the present invention is shown in Figs. The switching of the display cavity 2 8 from the first state to the second state and vice versa can be achieved by a control device (not shown) integrally formed on the epicenter 6 'these control devices are provided by conventional connectors 3 2 a and 3 2 b is connected to the display cells 2 8 in order to supply them with a control voltage. In the illustrated example, these connectors 3 2 a and 3 2 b form a flange disposed between the upper edge of the dial 18 and the lower edge of the display cavity 28. ί The paper size applies the Chinese National Standard (CNf) M specification (2 丨 οχ29? mm) .1 10. 'Β7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (8) According to the present invention, the crystal Cavities 28 are diffused or reflected liquid crystal cells in the second state. According to a preferred embodiment of the present invention, the display cell 28 is a twisted nematic (TINT) liquid crystal display cell. The display cavity 2 8 includes a transparent front substrate 3 4, a transparent rear substrate 3 6 ′, a sealed frame 3 8 forming a space and a closed device, and holes defined by the substrates 3 4 and 36 and having a liquid crystal layer therein. . The opposite surfaces of the substrates 34 and 36 have transparent electrodes 40 and 42, for example, made of indlum / tin oxide. In the illustrated example, the front substrate 34 has electrodes composed of digits. 'Each digit is formed of a segment that allows alphanumeric characters to be displayed', and the rear substrate 36 has electrodes extending over its entire surface. The electrodes 40 and 42 are connected to the connector 3 2 a via a contact area 4 4 located outside the hole. The display cavity 28 also includes a linear polarizer 46 on the crystal 22 side, and a quarter wave plate 48 on the dial 18 side combined with the cholesterol film 50. Such display cavities are similar to those published by J. Phy s. Appl. Phy., Vol 8, 1 975 by TJ Sheffer " Twisted Nematic Display with Cholesteric Reflector〃 Twisted nematic display). The polarizing plate 46 is preferably a high-efficiency polarizing and transmitting type, for example, a polarizing plate sold by Japanese Sandtsu Company under the code L L C 2 5 6 1 8 S F. It should also be noted that, according to an alternative, the twisted nematic liquid crystal cells described in Scheffer's literature can also be referred to herein as the color display device disclosed in European Patent EP-A — 0 6 0 0 3 49 The paper size applies the Chinese National Standard (CNS) A4 specification (210X 297 mm) -11-(Please read the precautions on the back before filling this one hundred θ θ. Order A7, B7 V. Description of the invention (9) According to another alternative, a cholesterol film 50 of a reflection wavelength or a portion of a visible color equivalent to a set color may be selected. In this way, the data may be displayed in complementary colors relative to the dial color, thus improving the display component ’s Contrast and aesthetics. In the field of the present invention, the switchable display cavities 28 are transparent in the unswitched state and reflective in the switched state. When applied or moved between the electrode 40 and some electrodes 42 When the voltage is removed, the liquid crystals located between these electrodes 42 and 40 can alternately reflect or diffuse to a transparent state. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs (please read the back first) Note: Please fill in this page again.) It should be noted that the display cavity 2 8 is a 90 ° twisted nematic liquid crystal cavity 'polarizing plate 4 6 is a conventional linear type, and the quarter wave plate 4 8 is in a circle. The light is polarized to the right, and the cholesterol film 50 is a left-twisted nematic film. It is shown that the cavities 28 are completely transparent in the first switching state, that is, when no voltage is applied across the junctions of the electrodes 40 and 42. Time (unswitched state). This state is represented by the symbol of R 1 light ray in Figure 1, where it can be seen that this light ray passes through the crystal cavity 2 8 and is reflected by the dial 18. The crystal cavity 2 8 is Diffusion or reflection in its switched area, that is, when a voltage is applied across the junctions of the electrodes 40 and 42 (switched state). This second state is represented by the symbol of R 2 light rays in FIG. 3 It can be seen that this light ray is reflected by the salty caves 2 8. Therefore, 'opaque data can be displayed on a reflective background, the opacity is determined by the color reflected by the cholesterol film 5 0 and the scene is determined by the dial 1 8 Color decision. If you want a transparent display on an opaque background (Figure 5), The polarizing plate 46 can be adjusted to its own paper size 本 ® (774774 ~ i2: ~ ---- A7 _______ B7 _ ^ _ V. Description of the invention (10) The starting position is rotated by 90 °. It should be noted that The same effect can be obtained by rotating the quarter-wave plate 48 to its starting position by 90 °. In this example, 'when no control voltage is applied, the display cavity 28 is opaque and reflective. 'If a control voltage is applied between the electrodes 40 and 42, it will be shown that the cavities 28 are made transparent. In the following description, the same elements as those described in FIGS. 1 to 5 will be indicated by the same numerals. Referring now to Fig. 6, a first alternative embodiment of the display device of the present invention is shown. According to this alternative ', the upper display device 24 further includes a second quarter wave plate 52 immediately after the cholesterol film 50, and the lower display device 26 includes a dial 18 forming a metal reflector. By way of example, the visible surface of the dial 18 may include a reflective metal layer if the dial 18 is not made of metal, or the surface may be mirror polished if the dial 18 is metallic. It should be noted that it is also possible to form the second quarter-wave plate 5 2 directly on the dial 18. Referring now to Fig. 7, a second alternative embodiment of the display device of the present invention is shown. According to this alternative, the lower display device 2 6 includes a dial 1 8 which forms a cholesterol mirror. This cholesterol mirror has a spiral direction opposite to that of the cholesterol film 50 of the upper display device 2 4. Referring now to Fig. 8, a third alternative embodiment of the display device of the present invention is shown. According to this alternative, the lower display device 26 further includes second and third quarter wave plates 5 4 and 5 6 and a second cholesterol film 5 8 ° which replaces the mineral plate 18 according to another According to an embodiment, the display crystal cavity 2 8 may include (please read the precautions on the back before filling out this page), and-° printed by the Intellectual Property Bureau of the Ministry of Economic Affairs's consumer co-operative society. The paper size is applicable to China National Standard (CNS) A4 Specifications (210 X 297 mm) -13 Consumption cooperation by employees of the Intellectual Property Bureau of the Ministry of Economic Affairs, printed A7 ________B7 __ V. Description of the invention (彳 彳) Linear polarizer 4 6 on the crystal 2 2 side, and 1 8 on the dial The reflective polarizer δ 0 ′ on the side can be combined with the linear polarizer located in front of it. It is combined with the position of the quarter wave plate 48 and the cholesterol film 50. In an advantageous manner, the reflective polarizer can be V One prism type, such as the product sold by 3M company under the name of DBEF (Double Brightness Enhancement Film). For example, β ε F (1 brightness enhancement film) manufactured by 3M company to improve the brightness of the system, or Not related to the DBEF film previously described If necessary, the above-mentioned reflective polarizer can be replaced by a refractive polarizer, for example, a product sold by the 3M company under the TDF product name. The quarter wave plate 48 and the cholesterol film 50 can also be integrated into a single element. For example, products sold by Merck under the name TRAN SMAX®. Obviously, any other polarizing plate that linearly reflects one of the components of polarized light and substantially transmits the other components perpendicular to the first component can also be twisted nematic After the display cavity 2 8 is used with the linear polarizer located before the display cavity 2 8. In the first state shown in FIG. 10 a, the linear polarizer 46 and the reflective polarizer 60 are so Positioned so that their polarization axes intersect. The display cavity 2 8 of the nematic liquid crystal cell is twisted with anisotropic anisotropy and is arranged between the two polarizing plates described above, showing the unswitched state of the cell 28 It is completely transparent, so the dial 18 is visible. As seen in Figure 10a, the natural unpolarized light indicated by the number 6 6 is vertically polarized by the linear polarizer 4 6. Hour 'is marked with 6 4 The polarization of the light is rotated by 90 °, and then transmitted by the reflective polarizer 60 without correction (please read the precautions on the back before filling in this page)

本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) -14 - A7 B7 五、發明説明(12 ) 送至錶盤1 8。光在其回程上跟著相同的路徑,所以觀察 者6 6可看見錶盤1 8。相反地’當顯示晶穴2 8是在已 切換的狀態時(圖1. 0 b ),鏡盤1 8是至少部分地罩住 。在此第一切換狀態中’顯不晶穴2 8在其已切換的區域 是反射或擴散的,亦即,在電極4 0與4 2的切換帶。如 圖1 0 b中所示,在其已切換的帶中通過顯示晶穴2 8的 垂直偏振光,並未被修正,所以被反射偏光板6 〇反射。 同樣地,在其已切換的帶的外側通過顯示晶穴2 8的光被 傳送至錶盤1 8。因此資料是顯示在反射背景上的不透明 體,不透.明度是由反射偏光板6 0所反射的顏色決定,而 背景是由錶盤1 8的顏色決定。圖1 〇 b亦顯示顯示晶穴 2 8的定址是正常,亦即,其已切換的區段是那些要尋找 以顯示的。根據未顯示於圖式中的替代例,顯示晶穴2 8 的定址可以是相反的,亦即,顯示晶穴2 8的所有區段可 以切換至除了那些要尋找以顯示的以外。在此例中,資料 是透明地顯示在不透明的背景上,透明度在此亦由錶盤 1 8的顏色決定。要注意到,藉由使線性偏光板4 6旋轉 9 0° ,可獲得相反的狀態,亦即,未切換狀態是不透明 ,而已切換狀態是透明。 在圖1 1 a所示的第二狀態中,線性偏光板4 6與反 射偏光板6 0是如此訂位使得它們的偏振軸是相互平行的 。在兩個偏光板4 6與6 0之間,配置有顯示晶穴2 8, 其爲負非等向性的向列扭曲液晶晶穴。因此液晶分子的排 列在該顯示晶穴2 8的未切換狀態中是垂直的’使得顯示 (請先閱讀背面之注意事項再填寫本頁) © 訂 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) -15 - A7 _____ B7_^^_ 五、發明説明(13 ) 晶穴2 8在此狀態中的光偏振方向上不會有所影響。藉由 應用類似的推理至相關於圖1 0 a與1 〇 b的光偏振方向 上,將瞭解顯示晶穴2 8的未切換狀態是全然透明的(圖 11a),使得錶盤1 8是可見的。相反地,在第二切換 狀態中(圖1 1 b ),顯示晶穴2 8在電極4 0與4 2的 切換帶中是反射或擴散的。因此錶盤1 8是部分遮蔽的, 呈現給觀測者6 6的資料在透明的背景上是不透明的,不 透明度是由反射偏光板6 0反射的顏色決定,而背景是由 錶盤1 8的顏色決定。圖1 1 b顯示顯示晶穴2 8的定址 是正常的,亦即,切換的節段是那些尋找以顯示的。根據 爲顯示於圖式中的替代例,顯示晶穴2 8的定址亦可以是 相反的。因而資料是透明地顯示在不透明的背景上,透明 度是由反射偏光板6 0所反射的顏色決定。 不用說,顯示晶穴2 8可以另一類型予以配置,其在 第一切換狀態是透明,而在第二狀態是反射與擴散。 亦可選擇其它類型的顯示晶穴2 8,例如,反向的 P D L C,向列溶膠與膽固醇結構,動態濺射,聚合物穩 定膽固醇結構(P S C T ),及電解類型等等的晶穴。 這些類型的晶穴的結構與操作爲熟悉此技術者所熟知 ,在此不再說明。 爲了完整地說明向列溶膠與膽固醇結構類型的晶穴之 結構及操作,在此將引用美國專利U S 5 1 8 8 7 6 〇與 歐洲專利E P — A — 0 4 5 1 9 0 5作爲參考。 爲了完整地說明聚合物色散液晶晶穴之結構及操作’ (請先閱讀背面之注意事項再填寫本萸) ΘΙ 裝. 訂 經濟部智慧財產局員工消費合作社印製 本纸張尺度適用中國國家標準(CNS ) A4規格(210/297公釐.) -16 - A7 B7 五、發明説明(14 ) ~~~~~—~ 在此將引用美國專利u S 4 4 3 5 0 4 7作爲參考。 要注意到,就這一點而言,若希望獲得在未切換狀態 疋透明而在已切換狀態是不透明與反射,可選擇反向的 P D L C。 爲了完整地說明動態濺射類型的晶穴之結構及操作, 在此將引用由B_ Bahadur所編著的、、液晶的應用及使用(This paper size is in accordance with Chinese National Standard (CNS) A4 specification (210X297mm) -14-A7 B7 V. Description of invention (12) Send to dial 18. The light follows the same path on its return, so the observer 6 6 can see the dial 18. On the contrary, when the display cavity 28 is in the switched state (Fig. 1.0b), the mirror plate 18 is at least partially covered. In this first switching state, the 'shown crystal cavity 28' is reflected or diffused in its switched region, that is, in the switching zone of the electrodes 40 and 42. As shown in Fig. 10b, the vertically polarized light passing through the display cavity 28 in its switched band has not been corrected, so it is reflected by the reflective polarizing plate 60. Similarly, light outside the switched band is transmitted to the dial 18 through the display pockets 28. The data is therefore an opaque body displayed on a reflective background, opaque. The lightness is determined by the color reflected by the reflective polarizer 60, and the background is determined by the color of the dial 18. Fig. 10b also shows that the addressing of the crystal cavity 28 is normal, that is, its switched sections are those to be found for display. According to an alternative example that is not shown in the drawing, the addressing of the display cavity 28 can be reversed, i.e. all sections of the display cavity 28 can be switched to other than those to be found for display. In this example, the data is displayed transparently on an opaque background, and the transparency is also determined by the color of the dial 18 here. It should be noted that by rotating the linear polarizer 46 by 90 °, the opposite state can be obtained, that is, the unswitched state is opaque and the switched state is transparent. In the second state shown in Fig. 1a, the linear polarizer 46 and the reflective polarizer 60 are positioned so that their polarization axes are parallel to each other. Between the two polarizing plates 46 and 60, display cells 28 are arranged, which are nematic anisotropically twisted liquid crystal cells. Therefore, the arrangement of liquid crystal molecules is vertical in the unswitched state of the display cavity 28, so that the display is displayed (please read the precautions on the back before filling this page). The scale applies to the Chinese National Standard (CNS) A4 specification (210X297 mm) -15-A7 _____ B7 _ ^^ _ V. Description of the invention (13) Cavity 2 8 will not affect the direction of light polarization in this state. By applying similar reasoning to the polarization directions of light related to Figs. 10a and 10b, it will be understood that the unswitched state of the display cavity 28 is completely transparent (Fig. 11a), making the dial 18 visible . Conversely, in the second switching state (Fig. 1b), it is shown that the cavities 28 are reflected or diffused in the switching bands of the electrodes 40 and 42. Therefore, the dial 18 is partially obscured. The data presented to the observer 66 is opaque on a transparent background. The opacity is determined by the color reflected by the reflective polarizer 60, and the background is determined by the color of the dial 18. . Figure 1 1b shows that the addressing of the cavity 28 is normal, that is, the switched segments are those sought to be displayed. According to an alternative example shown in the drawing, the addressing of the display cavities 28 can also be reversed. Therefore, the data is displayed transparently on an opaque background, and the transparency is determined by the color reflected by the reflective polarizing plate 60. Needless to say, the display cells 28 can be configured in another type, which is transparent in the first switching state and reflective and diffused in the second state. Other types of display cavities 28 can also be selected, for example, reverse P D L C, nematic sol and cholesterol structure, dynamic sputtering, polymer stabilized cholesterol structure (PSTC), and electrolytic type and so on. The structure and operation of these types of cavities are well known to those skilled in the art and will not be described here. In order to fully explain the structure and operation of the cavities of the nematic sol and cholesterol structure type, the US patent US 5 1 8 8 7 6 and the European patent EP — A — 0 4 5 1 9 0 5 are incorporated herein by reference. In order to fully explain the structure and operation of polymer dispersive liquid crystal cells' (please read the notes on the back before filling in this 萸) (CNS) A4 specifications (210/297 mm.) -16-A7 B7 V. Description of the invention (14) ~~~~~~~ The US patent uS 4 4 3 5 0 4 7 will be cited here as a reference. It should be noted that, in this regard, if you want to get transparent in the unswitched state and opaque and reflective in the switched state, you can choose the reverse P D L C. In order to fully explain the structure and operation of the cells of the dynamic sputtering type, the application and use of liquid crystals edited by B_Bahadur will be cited here (

Liquid Crystal Applications and Uses)"第一冊第 1 9 6 至 227頁作爲參考。 在即文中說明的所有類型的顯示晶穴2 8當然可由一 矩陣的電極被動地定址’或甚至於由例如爲薄層的電晶體 (T F T ; Μ I Μ )或二極體的非線性元件主動定址。 爲了完整地說明電解類型的晶穴之結構及操作,在此 將引用1 9 7 8年S I D出版由J.Duchene等著作的、'電解 顯示(Electrolytic Display) 〃中第3 4至3 7頁作爲參考 。要注意到,如此的晶穴在未切換狀態(圖1與2 )是透 明’而在已切換狀態(圖3與4 )是不透明與反射。 以上所述的晶穴在未切換狀態所有都是透明的,且在 應用至時計1時,證明特別地有利。實在地,下顯示裝置 2 6 ’亦即,針1 2、1 4與1 6及錶盤1 8,以最小的 耗電量就可永久看到,而上顯示裝置2 4只有在使用者希 望看到由上顯示裝置所提供的一組資料時才顯示。 因此,根據本發明的顯示組件允許不同顯示組態以獲 得作爲顯示晶穴2 8的切換狀態的功能。 顯示晶穴2 8的切換可以例如經由一或數個按鈕所控 (請先閲讀背面之注意事項再填寫本頁) :裝 訂 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) -17 - A7 B7 五、發明説明(15 ) 制的腕錶的習知方式予以達成。每一按鈕的作動使得顯示 晶穴2 8自一狀態切換至另一狀態。 (請先閎讀背面之注意事項再填寫本頁)Liquid Crystal Applications and Uses) " Volume 1, pages 196 to 227 for reference. All types of display cavities 28 described in the text can of course be passively addressed by a matrix of electrodes' or even actively addressed by a non-linear element such as a thin-film transistor (TFT; M IM) or a diode. . In order to fully explain the structure and operation of the electrolytic type cells, we will cite the "Electrolytic Display" in "Electrolytic Display", published by J. Duchene and others in 1978, as the pages of 3-4 to 37. reference. It should be noted that such a cavity is transparent in the unswitched state (Figures 1 and 2) and opaque and reflective in the switched state (Figures 3 and 4). The cells described above are all transparent in the unswitched state, and prove to be particularly advantageous when applied to the timepiece 1. In fact, the lower display device 2 6 ′, that is, the hands 1 2, 1 4 and 16 and the dial 18 can be seen permanently with minimal power consumption, while the upper display device 2 4 can be seen only when the user wishes to see It is not displayed until a set of information provided by the upper display device. Therefore, the display assembly according to the present invention allows different display configurations to obtain a function as a display of the switching state of the cavity 28. The display of the crystal cavity 2 8 can be controlled by, for example, one or more buttons (please read the precautions on the back before filling this page): Binding Printed by the Intellectual Property Bureau Staff Consumer Cooperatives of the Ministry of Economic Affairs This paper applies Chinese national standards CNS) A4 specification (210X297 mm) -17-A7 B7 5. The customary method of the wristwatch made of invention description (15) was achieved. The actuation of each button causes the display cavity 28 to switch from one state to another. (Please read the notes on the back before filling this page)

訂 經濟部智慧財產局員工消費合作社印製 -18 - 本紙張又度適用中國國家標準(CNS ) A4規格(210X297公釐)Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs -18-This paper is again applicable to China National Standard (CNS) A4 (210X297 mm)

Claims (1)

六、申請專利範圍. (請先閱讀背面之注意事項再填寫本頁) 1 . 一種顯示組件,包含兩重疊分別爲上與下顯示裝 置,上顯示裝置含有顯示晶穴與控制裝置,顯示裝置配置 在第一狀態是透明以使下顯示裝置可被見到及在第二狀態 顯示一組資料,而控制裝置配置以供應控制電壓至晶穴使 其自第一狀態切換至第二狀態,反之亦然,其中該晶穴在 第二狀態是擴散或反射型的液晶晶穴。 2 .如申請專利範圍第1項之顯示組件,其中晶穴是 一種液晶晶穴,選自以P D L C晶穴、向列溶膠或動態濺 射晶穴、聚合物穩定的膽固醇結構P S C T型的晶穴、電 解晶穴、及配置有位於其前的線性偏光板及接連位於其後 的四分之一波片與膽固醇薄膜之扭曲向列晶穴所形成的群 組,以及選自配置有位在其前的第一偏光板及可能有或無 與位在其後的第二偏光板相關連的反射偏光板之晶穴。 經滴部智慧財產局員工消費合作社卬製 3 .如申請專利範圍第2項之顯示組件,該顯示組件 包含配置有位在其前的線性偏光板及接連位在其後的四分 之一波片與膽固醇薄膜之扭曲向列型晶穴,其中上顯示裝 置或下顯示裝置另含有第二四分之一波片,而下顯示裝置 含有位在第二四分之一波片後的金屬反射器。 4 .如申請專利範圍第2項之顯示組件,該顯示組件 包含配置有位在其前的線性偏光板及接連位在其後並具有 第一螺旋方向的四分之一波片與膽固醇薄膜之扭曲向列型 晶穴,其中下顯示裝置含有相反於該膽固醇薄膜的螺旋方 向。 5 .如申請專利範圍第2項之顯示組件,該。顯示組件 -19 - 本紙張尺度適用中國國家標準(CNS )八4規格(210X 297公釐) 經濟部智慧財產局員工消費合作社印製 A8 B8 C8 D8 六、申請專利範圍 包含配置有位在其前的線性偏光板及接連位在其後的四分 之一波片與膽固醇薄膜之扭曲向列型晶穴,其中下顯示裝 置另含有四分之一波片與相同於第一膽固醇薄膜的第二膽 固醇薄膜。 6 .如申請專利範圍第2項之顯示組件,其中液晶晶 穴是扭曲向列型,其配置有位在其前的線性偏光板及接連 位在其後的與膽固醇薄膜結合的四分之一波片,其中膽固 醇薄膜是選擇以反射符合於一預定顏色的可見光譜的波長 或一部分。 7 .如申請專利範圍第2項之顯示組件,其中液晶晶 穴是扭曲向列型,其配置有位在其前的第一偏光板及可能 有或無與位在其後的第二偏光板相關連的反射偏光板。 8 .如申請專利範圍第7項之顯示組件,其中液晶晶 穴是正非等向性扭曲向列型,其配置有位在其前的線性偏 光板及位在其後的反射偏光板,偏光板是如此定位使得它 們的偏光軸相互交叉。 9 ·如申請專利範圍第7項之顯示組件,其中液晶晶 穴是正非等向性扭曲向列型,其配置有位在其前的線性偏 光板及位在其後的反射偏光板,偏光板是如此定位使得它 們的偏光軸相互平行。 1 0 .如申請專利範圍第8或9項之顯示組件’其中 晶穴的定址是正常。 1 1 .如申請專利範圍第8或9項之顯示組件’其中 晶穴的定址是反向。 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) _ 2〇 _ (請先鬩讀背面之注意事項再嗔寫本頁)Scope of patent application. (Please read the precautions on the back before filling out this page) 1. A display component, which includes two overlapping display devices, the upper and lower display devices, the upper display device contains the display cavity and the control device, and the display device configuration It is transparent in the first state so that the lower display device can be seen and display a set of data in the second state, and the control device is configured to supply a control voltage to the cavity to switch from the first state to the second state and vice versa However, in the second state, the cells are diffused or reflective liquid crystal cells. 2. The display device according to item 1 of the scope of patent application, wherein the crystal cavity is a liquid crystal crystal cavity selected from a PDLC crystal cavity, a nematic sol or a dynamic sputtering crystal cavity, and a polymer-stabilized cholesterol structure PSCT type crystal cavity. , An electrolytic cell, and a group formed by a linear polarizer in front of it, and a twisted nematic cell with a quarter-wave plate and a cholesterol film located behind it, and selected from the group consisting of The first polarizing plate in front and the reflective polarizing plate may or may not be associated with the second polarizing plate located behind it. Produced by the Consumer Cooperatives of the Dibei Intellectual Property Bureau 3. If the display unit of the second patent application scope is applied, the display unit includes a linear polarizer disposed in front of it and a quarter wave in succession. The twisted nematic cavity of the film and the cholesterol film, wherein the upper display device or the lower display device further includes a second quarter wave plate, and the lower display device includes a metal reflection located behind the second quarter wave plate. Device. 4. The display module according to item 2 of the patent application scope, which includes a linear polarizer disposed in front of the display module and a quarter wave plate and a cholesterol film which are successively positioned behind and have a first spiral direction. A twisted nematic cell, where the lower display device contains a spiral direction opposite to the cholesterol film. 5. If the display component of the second scope of the patent application, the. Display Unit-19-This paper size is in accordance with Chinese National Standard (CNS) 8 4 specifications (210X 297 mm) Printed by Employee Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A8 B8 C8 D8 6. The scope of patent application includes configuration in front of it The linear polarizer and the twisted nematic cavity of the quarter-wave plate and the cholesterol film which are located next to each other, wherein the lower display device further includes a quarter-wave plate and a second same as the first cholesterol film. Cholesterol film. 6. The display module according to item 2 of the scope of patent application, wherein the liquid crystal cell is a twisted nematic type, which is configured with a linear polarizer in front of it and a quarter of the cholesterol film combined behind it. Waveplates where the cholesterol film is selected to reflect a wavelength or a portion of the visible spectrum that conforms to a predetermined color. 7. The display module according to item 2 of the scope of patent application, wherein the liquid crystal cell is a twisted nematic type, which is configured with a first polarizing plate in front of it and a second polarizing plate with or without it. Associated reflective polarizer. 8. The display module according to item 7 of the scope of patent application, wherein the liquid crystal cell is a positive or anisotropic twisted nematic type, which is configured with a linear polarizer in front of it and a reflective polarizer and polarizer in behind Positioned so that their polarization axes cross each other. 9 · The display module according to item 7 of the scope of patent application, in which the liquid crystal cell is a positive-anisotropic twisted nematic type, which is configured with a linear polarizer in front of it and a reflective polarizer and polarizer behind it Positioned so that their polarization axes are parallel to each other. 10. The display module according to item 8 or 9 of the scope of patent application, wherein the addressing of the crystal cavity is normal. 1 1. The display module according to item 8 or 9 of the scope of patent application, wherein the addressing of the crystal cavity is reversed. This paper size applies to Chinese National Standard (CNS) A4 (210X297 mm) _ 2〇 _ (Please read the precautions on the back before writing this page) A8 B8 C8 D8 六、申請專利範圍 1 2 .如申請專利範圍第1項之顯示組件,其中晶穴 在控制裝置沒有施加任何電壓下是透明的。 (請先閱讀背面之注意事項再填寫本頁) 1 3 .如申請專利範圍第1項之顯示組件,其中下顯 示裝置是選自含有類比或數位裝置及數位裝置與/或裝飾 元件的組合之群組。 1 4 . 一種時計,包含由水晶與背蓋封閉的殼,鐘錶 裝置的錶心容納於殼中,該錶心與時間相關資訊結合一起 ,其中該時計包含具有兩重疊分別爲上與下顯示裝置,上 顯示裝置含有顯示晶穴與控制裝置,顯示裝置配置在第一 狀態是透明以使下顯示裝置可被見到及在第二狀態顯示一 組資料,而控制裝置配置以供應控制電壓至晶穴使其自第 一狀態切換至第二狀態,反之亦然,其中該晶穴在第二狀 態是擴散或反射型的液晶晶穴,該時計的下顯示裝置是由 該時間相關資訊的顯示裝置及延伸在水晶與該時間相關資 訊的顯示裝置之間的該上顯示裝置予以形成。 經濟部智慧財產局員工消費合作社印製 1 5 .如申請專利範圍第1 4項之時計,其中該時間 相關資訊的顯示裝置包含錶盤以及在該錶盤上方移動的時 針與分針。 1 6 .如申請專利範圍第1 4或1 5項之時計,其中 水晶是由上顯示裝置形成。_ 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) -21 -A8 B8 C8 D8 VI. Application scope of patent 1 2. For the display module of the first scope of patent application, the crystal cavity is transparent without any voltage applied to the control device. (Please read the precautions on the back before filling in this page) 1 3. If the display component of the scope of patent application is the first, the lower display device is selected from the group containing analog or digital devices and digital devices and / or decorative elements Group. 1 4. A timepiece including a case closed by a crystal and a back cover, and a watch core of the timepiece device housed in the case, the watch core and time-related information being combined, wherein the timepiece includes two superimposed upper and lower display devices, respectively. The upper display device contains a display crystal cavity and a control device. The display device is configured to be transparent in the first state so that the lower display device can be seen and display a set of data in the second state. The control device is configured to supply a control voltage to the crystal. The cavity is switched from the first state to the second state, and vice versa, in which the crystal cavity is a diffused or reflective liquid crystal cell in the second state, and the lower display device of the timepiece is a display device for the time-related information. And the upper display device extending between the crystal and the time-related information display device is formed. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 15. For a timepiece with the scope of patent application No. 14, the time-related information display device includes a dial and the hour and minute hands moving above the dial. 16. The timepiece as claimed in claim 14 or 15 in which the crystal is formed by the upper display device. _ This paper size applies to China National Standard (CNS) A4 (210X297 mm) -21-
TW088102679A 1998-02-27 1999-02-23 Display assembly including two superposed display devices TW381194B (en)

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Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60042549D1 (en) * 2000-02-22 2009-08-27 Asulab Sa A contrast inversion display unit comprising two superimposed display devices
TW546555B (en) * 2000-05-16 2003-08-11 Asulab Sa Display assembly with chromatic contrast inversion
AU2001256641A1 (en) * 2000-05-17 2001-11-26 E-Magin Display Technologies Ltd. Electronic billboard with reflective color liquid crystal displays
US6671231B2 (en) * 2000-12-11 2003-12-30 Eta Sa Fabriques D'ebauches Sequential control method for a display assembly including two superposed display devices
US6714488B1 (en) * 2001-09-04 2004-03-30 Eric J. Vogel Kinetichrome
MXPA02003689A (en) 2002-03-01 2004-04-05 Fossil Inc Improved timepiece.
DE10233734A1 (en) * 2002-07-24 2004-02-05 Siemens Ag Mirror with display device especially for motor vehicles has a liquid crystal cell with rear polarized foil and a front polarizing filter
US20050030836A1 (en) * 2003-04-04 2005-02-10 Tom Burns Watch with mirror dial plate
EP1513030A1 (en) * 2003-09-08 2005-03-09 Montres Breguet S.A. Timepiece comprising two watch-cases able to pivot one with respect to the other
JP2007285748A (en) * 2006-04-13 2007-11-01 Seiko Epson Corp Wrist watch
US7505370B2 (en) * 2006-05-23 2009-03-17 Sony Ericsson Mobile Communications Ab Clock display
KR101432567B1 (en) * 2007-04-19 2014-08-21 엘지디스플레이 주식회사 Liquid crystal display device
KR20090011113A (en) * 2007-07-25 2009-02-02 한국전자통신연구원 Wristwatch type mobile device
US20090040879A1 (en) * 2007-08-10 2009-02-12 Galie Louis M Wearable electronic device with multiple display functionality
US8096702B2 (en) * 2009-05-28 2012-01-17 The Avalanche Group, Llc Ornament container for watch
CH705600B1 (en) * 2011-10-07 2022-11-30 Richemont Int Sa Image guide device for clocks.
CN103472708A (en) * 2013-09-18 2013-12-25 苏州朗昇通信科技有限公司 Combined intelligent watch
EP2874024A1 (en) * 2013-11-15 2015-05-20 The Swatch Group Research and Development Ltd. Mother-of-pearl dial for concealed display
EP2887158A1 (en) * 2013-12-20 2015-06-24 ETA SA Manufacture Horlogère Suisse Adjustment device for a watch
US20150241852A1 (en) * 2014-02-27 2015-08-27 Sun Jong YANG Mechanical/quartz movement smart watch hybrid
CN104166268A (en) * 2014-07-24 2014-11-26 京东方科技集团股份有限公司 Mirror surface display device
US10114342B2 (en) * 2014-09-11 2018-10-30 Samsung Electronics Co., Ltd. Wearable device
CN104570465A (en) * 2015-02-02 2015-04-29 京东方科技集团股份有限公司 Display panel and display device
KR20170006761A (en) * 2015-07-09 2017-01-18 엘지전자 주식회사 Smart watch and method for contolling the same
CN105159046B (en) * 2015-09-08 2017-12-01 上海和辉光电有限公司 A kind of pointer intelligent watch and its display methods
US9703268B2 (en) * 2015-09-11 2017-07-11 Lenovo (Singapore) Pte. Ltd. Gauge opacity control
US9639064B2 (en) 2015-09-18 2017-05-02 Timex Group Usa, Inc. Wearable electronic device with hand synchronization
CN106125420A (en) * 2016-06-24 2016-11-16 京东方科技集团股份有限公司 Display floater, display device and intelligent watch
JP7024222B2 (en) * 2017-06-23 2022-02-24 カシオ計算機株式会社 Electronic devices, programs and clock display control methods

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1036699A (en) * 1974-02-28 1978-08-15 Akio Moriyama Electro-optical display device
DE2821619C3 (en) * 1978-05-18 1981-05-21 Gebrüder Junghans GmbH, 7230 Schramberg Electronic clock with analog display and hands and liquid crystal display unit
IT7953449V0 (en) 1979-07-26 1979-07-26 Fiat Auto Spa SUSPENSION FOR WHEEL DRIVE AND STEERING VEHICLES
GB2090440A (en) * 1980-12-16 1982-07-07 Ebauchesfabrik Eta Ag A watch having an analog display and a digital display
US4435047A (en) 1981-09-16 1984-03-06 Manchester R & D Partnership Encapsulated liquid crystal and method
US4970815A (en) * 1988-03-07 1990-11-20 Sunderland Howard F Light display
DE69228843T2 (en) 1991-05-27 1999-08-26 Dainippon Ink And Chemicals Liquid crystal device
DE69229003T2 (en) 1992-05-18 1999-10-21 Kent State University, Kent LIQUID CRYSTALINE, LIGHT-MODULATING DEVICE AND MATERIAL
JP3268858B2 (en) 1992-11-30 2002-03-25 三洋電機株式会社 Liquid crystal display
JP3610579B2 (en) 1993-03-29 2005-01-12 セイコーエプソン株式会社 Electronics
JPH08201547A (en) 1995-01-30 1996-08-09 Casio Comput Co Ltd Electronic apparatus provided with liquid-crystal display device
JP2998075B2 (en) 1996-06-20 2000-01-11 セイコーインスツルメンツ株式会社 Reflective liquid crystal display
JP3331903B2 (en) 1996-08-23 2002-10-07 セイコーエプソン株式会社 Display element and electronic device using the same
WO1998050819A1 (en) * 1997-05-07 1998-11-12 Seiko Epson Corporation Display element and electronic clock
JP3702643B2 (en) * 1997-06-09 2005-10-05 セイコーエプソン株式会社 Display device and electronic timepiece
JP3056133B2 (en) * 1997-06-26 2000-06-26 静岡日本電気株式会社 Display device
EP0927917B1 (en) 1997-07-18 2004-03-31 Citizen Watch Co. Ltd. Watch

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